<?php

/**
 * This is the model class for table "empresa".
 *
 * The followings are the available columns in table 'empresa':
 * @property integer $id_empresa
 * @property string $nome
 */
class Empresa extends CActiveRecord
{
	private static $_items=array();
	
	/**
	 * Returns the static model of the specified AR class.
	 * @return Empresa the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return 'empresa';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('nome', 'length', 'max'=>50),
			array('nome', 'required'),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('id_empresa, nome', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'usuarios' => array(self::HAS_MANY, 'Usuario', 'id_empresa'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'id_empresa' => 'Id Empresa',
			'nome' => 'Nome',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('id_empresa',$this->id_empresa);
		$criteria->compare('nome',$this->nome,true);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}
	
	/**
	 * Carrega o nome de todas as empresas do banco de dados.
	 */
	public static function loadItems()
	{
		self::$_items=array();
		$models=self::model()->findAll();
		foreach($models as $model)
			self::$_items[$model->id_empresa]=$model->nome;
		return self::$_items;
	}
	
	/**
	 * Carrega o nome da empresa com o id especificado.
	 * @param string the item type
	 */
	public static function loadItem($id)
	{
		self::$_items[$id]=array();
		$models=self::model()->findAll(array(
			'condition'=>'id_empresa=:id',
			'params'=>array(':id'=>$id),
		));
		foreach($models as $model)
			self::$_items[$model->id_empresa]=$model->nome;
		return self::$_items[$model->id_empresa];
	}
}